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| <!DOCTYPE html>
<meta charset="utf-8" />
<title>WebSocket Test</title>
<script language="javascript" type="text/javascript">
function init()
{
document.myform.url.value = "ws://localhost:8080/"
document.myform.inputtext.value = "Hello World!"
document.myform.disconnectButton.disabled = true;
}
function doConnect()
{
websocket = new WebSocket(document.myform.url.value);
websocket.onopen = function(evt) { onOpen(evt) };
websocket.onclose = function(evt) { onClose(evt) };
websocket.onmessage = function(evt) { onMessage(evt) };
websocket.onerror = function(evt) { onError(evt) };
}
function onOpen(evt)
{
writeToScreen("connected\n");
document.myform.connectButton.disabled = true;
document.myform.disconnectButton.disabled = false;
}
function onClose(evt)
{
writeToScreen("disconnected\n");
document.myform.connectButton.disabled = false;
document.myform.disconnectButton.disabled = true;
}
function onMessage(evt)
{
writeToScreen("response: " + evt.data + '\n');
}
function onError(evt)
{
writeToScreen('error: ' + evt.data + '\n');
websocket.close();
document.myform.connectButton.disabled = false;
document.myform.disconnectButton.disabled = true;
}
function doSend(message)
{
writeToScreen("sent: " + message + '\n');
websocket.send(message);
}
function writeToScreen(message)
{
document.myform.outputtext.value += message
document.myform.outputtext.scrollTop = document.myform.outputtext.scrollHeight;
}
window.addEventListener("load", init, false);
function sendText() {
doSend( document.myform.inputtext.value );
}
function clearText() {
document.myform.outputtext.value = "";
}
function doDisconnect() {
websocket.close();
}
</script>
<div id="output"></div>
<form name="myform">
<p>
<textarea name="outputtext" rows="20" cols="50"></textarea>
</p>
<p>
<textarea name="inputtext" cols="50"></textarea>
</p>
<p>
<textarea name="url" cols="50"></textarea>
</p>
<p>
<input type="button" name=sendButton value="Send" onClick="sendText();">
<input type="button" name=clearButton value="Clear" onClick="clearText();">
<input type="button" name=disconnectButton value="Disconnect" onClick="doDisconnect();">
<input type="button" name=connectButton value="Connect" onClick="doConnect();">
</p>
</form>
</html>
|